By ERRASONVET · Updated 6 October 2026
Choose a milk pulsator by its operating type and the exact port configuration, then confirm its connection and system requirements. The models below include pneumatic units with several connector choices and an electric unit with two listed vacuum ports. Port count alone does not establish system compatibility or the number of animals that can be milked.
Compare operating type and port options
These are the listed configuration choices for three ERRASONVET products. Specify one configuration in your enquiry; photographs and cover colour alone are insufficient for ordering a replacement.
| Product | Operating type | Listed ports or configurations |
|---|---|---|
| Rectangular-Cover Pneumatic Milk Pulsator with 2 or 4 Ports ERV-DF-PUL-00001 |
Pneumatic | Port configurations: 2 plastic ports; 4 plastic ports |
| Rounded-Cover Pneumatic Milk Pulsator with Three Port Configurations ERV-DF-PUL-00002 |
Pneumatic | Configuration 01: 2 plastic ports; Configuration 02: 2 stainless steel ports; Configuration 03: 4 plastic ports |
| Blue-and-White Electric Milk Pulsator ERV-DF-PUL-00005 |
Electric | Vacuum ports: 2 |
Pneumatic or electric: identify the existing installation first
ERV-DF-PUL-00001 and ERV-DF-PUL-00002 are listed as pneumatic. ERV-DF-PUL-00005 is listed as electric. This operating-type distinction does not establish a direct replacement between them.
For a pneumatic enquiry, provide the equipment reference, existing pulsator reference and its connection arrangement. For an electric enquiry, also provide the existing controller and electrical supply requirements. The electric product entry does not specify a supply voltage, frequency or controller compatibility, so those details need confirmation.
Two ports, four ports and connector material
The rectangular-cover pneumatic family offers two plastic ports or four plastic ports. The rounded-cover family adds a two-stainless-steel-port option alongside two- and four-plastic-port configurations. Identify the exact combination instead of requesting only a cover shape.
The electric model lists two vacuum ports. A matching port count does not confirm hose diameter, connector geometry, hose routing or operating settings. Provide a photograph or drawing of the existing connections and confirm the intended arrangement against the equipment instructions.
What to include in a replacement enquiry
- ERRASONVET product code and the required configuration.
- Existing pulsator, milking-machine and controller references where applicable.
- Port count, connector material requirement and labelled photographs of the connection arrangement.
- Tube inside and outside diameters, connector measurements and required tube lengths.
- Required operating parameters from the equipment documentation, including any specified pulsation rate, ratio and vacuum conditions.
- Electrical supply and controller details for an electric unit; identify unknown values instead of assuming them.
- Quantity, required mounting parts or accessories, packaging and destination country.
Frequently asked purchasing questions
Does a four-port model automatically fit a two-port installation?
No interchangeability claim is established by these specifications. Confirm the routing, connections and system requirements for the exact configuration before ordering.
Can the blue-and-white electric unit be ordered by colour?
Use ERV-DF-PUL-00005 and the published product details to identify the enquiry. Colour alone does not identify electrical requirements or controller compatibility.
Are the operating rate and ratio specified in this comparison?
No. The selected product entries establish operating type and the listed port options, not those settings. Supply your equipment requirements and ask for the proposed unit’s documented parameters.
Does selecting a pulsator also select the tubing?
No. Tubes need their own dimensional and application checks. Use the linked tube size guide to prepare those details, then confirm the connector match for the chosen pulsator.
Request a pulsator quotation
Send the product code, pneumatic or electric requirement, exact port arrangement, equipment references and quantity. Ask for an itemised supply list and confirmation of the unresolved connection or operating details.
Request a dairy equipment quotation
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- Milk and pulse tube sizes
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